Force-feed lubricator



(No Model- --W. P. TRAVES su 'M vo. WHBLM.v

FORGE FEED 'LUBRICATOR.

No. 469,821'. Patented Mar.'1,.1a9z,

NITED STATES @PATENT uric-E.

VEBSTER F. TRAVES AND MARTIN O. VHELAN, OF DETROIT, MICHIGAN.

FORCE-FEED LUBRICATOR.

SPECIFICATION forming part of Letters Patent No. 469,821, dated March 1, 1892.

Application filed August 3l, 1891l Serial No. 404,207. (No model.)

T0 LZZ whom, t may concern:

Beit known that we, IVEBSTER F. TRAVES and MARTIN O. WHELAN, citizens of the United States, residing at Detroit, county of Vayne, State of Michigan, have invented a certain new and useful Improvement in Lubrcators; and we declare the following to'be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification. v

This invention relates to lubricators, ant has for its object an attachment to a moving oil-cup by means of which a hard or nontluid lubricant may be forced out from a cup attached to a moving journal like a crank or wrist pin regularly and constantly. In lubricating moving journals of the kind referred to it is frequent-ly desirable to employ a non-fluid lubricant, and as suchalubricant does not of itself freely escape from the cup or lubricator in which it is stored some means must be devised to expel it therefrom. Ve accomplish this by means of the mechanism herein described and shown in the accompanying drawings, in which- Figure 1 shows in perspective a crank or wrist pin with a cup attached thereto. Fig. 2 shows a section of the cup.

A represents the crank,upon which is journaled the pitman-rod B. Upon the upper side of the box or brasses C is a cup' D, having a small feed-hole d, communicating through the box to the journal on the crank or wrist pin. The cup D is cylindrical, and within it is fitted a piston E, free to move in either direction. Overthe cup is a cover F, with a screw-threaded opening f through the center of it. Through the opening f worksa screwthreaded rod G, having a ratchet-Wheel g fixed on its outer end. The inner end of the rod G is swiveled to the piston E.

Attached to the frame supporting the ,crankshaft A or attached to any other` firm support, as the floor or engine-bed, is a standard H, supporting a fixed but adjustable ratchetpawl h. The standard H supports the ratchetpawl h at the proper height to bring the pawl into mesh with the ratchet-wheel g at a given point during the revolution of the crank. Preferably the point should be either at the extreme upper limit or at the extreme lower limit, inasmuch as at these parts of its travel the ratchet-wheel moves for a short distance in a practically horizontal path and at right angles to a pawl h, havinga vertical engaging edge. The fixed pawl h is adjusted through a holding-slot 7l in the standard H, and is held in adjustment by means of a set-screw I. For the operation the pawl his adjusted to engageone or more of the teeth of the ratchetwheel g at each revolution of the crank, and as the crank passes the pawl the ratchetwheel g is turned forward one tooth or more. The turning of the ratchet-wheel and the screw G forces the piston down against the lubricant underneath and forces a small portionof the lubricant out through the feedopening d onto the crank-pin. The ratchetpawl h has vertical length to engage the ratchet-wheel until the piston E reaches the bottom or nearly to the bottom of the cup D, and at the same time the ratchet-wheel g gradually moves downward until it ceases to engage the pawl, thereby obviating any possibility of forcing the piston down against the bottom of the cup and preventing any danger of jamming or breaking the parts by the continued motion of the crank. At the same time the position indicates that the cup has been emptied of lubricant and should be filled again.

What we claim is- 1. In combination with a crank, a lubricating-cup, a piston working therein, a screwstem operating to force said piston, a ratchetwheel on said screw, a fixed support near the path of said crank, and a pawl carried by said fixed support and adapted to engage with and rotate said ratchet-wheel a fixed distance with each revolution of the crank, substantially as and for the purpose described.

2. The combination of a crank-shaft, a lubricating-cup mounted thereon, a piston and screw-threaded piston-rod working through a threaded aperture in the cap of said cup, a

ratchet-Wheel on said piston-rod, and an adj ustable pawl xed on a support near the path of said crank and adapted to engage with said ratchet-wheel and to turn it and the screw ypiston-rod. connected thereto gradually downward out of engagement with said pawl, substantiaI-ly as and for the purpose described.

In testimony whereof We sign th'is specification in the presence of two Witnesses.

WEBSTER F. 'TRAVES` MARTIN O. WHELAN. NVitnesses:

CHARLES H. FISK, DELL S. BROWNE. 

